sheetjs/modules/src/iwa.ts

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2022-01-29 02:29:34 +00:00
/*! sheetjs (C) 2013-present SheetJS -- http://sheetjs.com */
import { Ptr, ProtoMessage, parse_shallow, parse_varint49, varint_to_i32 } from './proto';
interface IWAMessage {
/** Metadata in .TSP.MessageInfo */
meta: ProtoMessage;
data: Uint8Array;
}
interface IWAArchiveInfo {
id?: number;
messages?: IWAMessage[];
}
export { IWAMessage, IWAArchiveInfo };
function parse_iwa(buf: Uint8Array): IWAArchiveInfo[] {
var out: IWAArchiveInfo[] = [], ptr: Ptr = [0];
while(ptr[0] < buf.length) {
/* .TSP.ArchiveInfo */
var len = parse_varint49(buf, ptr);
var ai = parse_shallow(buf.slice(ptr[0], ptr[0] + len));
ptr[0] += len;
var res: IWAArchiveInfo = {
id: varint_to_i32(ai[1][0].data),
messages: []
};
ai[2].forEach(b => {
var mi = parse_shallow(b.data);
var fl = varint_to_i32(mi[3][0].data);
res.messages.push({
meta: mi,
data: buf.slice(ptr[0], ptr[0] + fl)
});
ptr[0] += fl;
});
out.push(res);
}
return out;
}
export { parse_iwa };